Genuine; meaning what one says or does; heartfelt. / Meant truly or earnestly. / (archaic) clean; pure

A male given name

sincerity

comparative form of sincere: more sincere

In a sincere or earnest manner; honestly. / (US) A conventional formula for ending a letter, used when the salutation addresses the person for whom the letter is intended by his or her name.

plural of sincerity

The quality or state of being sincere

(idiomatic, chiefly Britain) A polite, formulaic phrase used at the end of a letter, especially when the sender knows the recipient's name.

(art) A partial return to modernism, going against prevailing modes of postmodernist irony or cynicism.

superlative form of sincere: most sincere